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Related Concept Videos

Gastritis-I: Introduction and Types01:27

Gastritis-I: Introduction and Types

420
Gastritis, defined by the inflammation or irritation of the stomach lining or gastric mucosa, manifests in several distinct forms: acute, chronic, reactive, and a specific subtype known as autoimmune metaplastic atrophic gastritis.
Acute gastritis presents as a sudden inflammation triggered by various stressors to the stomach lining, such as exposure to corrosive agents, local irritants like aspirin and other NSAIDs, alcohol consumption, radiation therapy, physical trauma, severe burns, sepsis,...
420
Gastritis-II: Pathophysiology01:17

Gastritis-II: Pathophysiology

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Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
327
Gastritis III: Clinical Manifestations and Management01:23

Gastritis III: Clinical Manifestations and Management

251
The clinical manifestations of gastritis can vary depending on the cause and type of gastritis, but some common symptoms may include the following.
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
251
Pathophysiology of Vomiting01:22

Pathophysiology of Vomiting

442
Vomiting is a complex physiological response to expel harmful or irritating substances from the body. It's a defensive mechanism triggered by stimuli like poisons, microbial toxins, cytotoxic drugs, and mechanical abdominal distension. The process is centrally coordinated by the vomiting (or emetic) center located in the medulla of the brainstem. This area, rich in muscarinic M1, histamine H1, neurokinin 1 (NK1), and serotonin 5-HT3 receptors, coordinates the act of vomiting through...
442
Gastrointestinal Motility Disorders01:20

Gastrointestinal Motility Disorders

359
Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
359
Gastroesophageal Reflux Disease I: Meaning and Pathophysiology01:29

Gastroesophageal Reflux Disease I: Meaning and Pathophysiology

317
Gastroesophageal Reflux Disease (GERD) involves the recurrent backflow of the stomach or duodenal contents into the esophagus, leading to troublesome symptoms and potential esophageal mucosal damage. Although GERD is often referred to as a disease, it is more accurately described as a syndrome, as it encompasses a range of symptoms and complications rather than a singular pathological entity, impacting a large number of individuals as the most prevalent upper gastrointestinal problem. Roughly...
317

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Related Experiment Video

Updated: Jul 3, 2025

Adapting Gastrointestinal Organoids for Pathogen Infection and Single Cell Sequencing under Biosafety Level 3 BSL-3 Conditions
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Viral gastroenteritis.

Thomas G Flynn1, Maribel Paredes Olortegui2, Margaret N Kosek1

  • 1Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA, USA.

Lancet (London, England)
|February 10, 2024
PubMed
Summary
This summary is machine-generated.

Norovirus and other viral gastroenteritis causes are better understood, with improved diagnostics aiding targeted treatments. Vaccine development is progressing to reduce the impact of prevalent gastroenteritis viruses.

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Detection and Genogrouping of Noroviruses from Children's Stools By Taqman One-step RT-PCR
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EPA Method 1615. Measurement of Enterovirus and Norovirus Occurrence in Water by Culture and RT-qPCR. II. Total Culturable Virus Assay
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EPA Method 1615. Measurement of Enterovirus and Norovirus Occurrence in Water by Culture and RT-qPCR. II. Total Culturable Virus Assay
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Area of Science:

  • Gastroenterology
  • Virology
  • Infectious Diseases

Background:

  • Norovirus was identified in 1972, evolving understanding of viral gastroenteritides.
  • A few key viruses are now recognized as primary causes of acute gastroenteritis globally.
  • Current treatment primarily involves fluid and electrolyte replacement.

Purpose of the Study:

  • To review the evolution of scientific understanding of viral gastroenteritides.
  • To highlight advancements in diagnostics and their impact on patient and population-level interventions.
  • To identify remaining challenges in host susceptibility and clinical management.

Main Methods:

  • Literature review on viral gastroenteritis.
  • Analysis of diagnostic improvements and their clinical implications.
  • Examination of vaccine development progress for prevalent gastroenteritis viruses.

Main Results:

  • Improved diagnostics enable precise illness attribution and targeted interventions.
  • Rotavirus vaccines have significantly decreased global morbidity and mortality.
  • Research continues into host factors and optimal management for severe disease.

Conclusions:

  • Scientific understanding of viral gastroenteritis has advanced significantly since 1972.
  • Diagnostics and vaccines are crucial tools in managing and preventing gastroenteritis.
  • Further research is needed on host susceptibility and severe disease management.